Disable any email sent to the Member/User by Paid Memberships Pro

my_pmpro_disable_member_emails.php

<?php
/**
 * The function below will disable any email sent to the Member/User by Paid Memberships Pro.
 * The admin emails will still be sent as intended.
 *
 * You can add this recipe to your site by creating a custom plugin
 * or using the Code Snippets plugin available for free in the WordPress repository.
 * Read this companion article for step-by-step directions on either method.
 * https://www.paidmembershipspro.com/create-a-plugin-for-pmpro-customizations/
 */
function my_pmpro_disable_member_emails( $recipient, $email ) {
	if ( strpos( $email->template, "_admin" ) == false ) {
		//this is not an admin email template
  		$recipient = NULL;
	}	
	return $recipient;
}
add_filter( 'pmpro_email_recipient', 'my_pmpro_disable_member_emails', 10, 2 );

This recipe is included in the blog post on "Methods to Totally Disable, Reroute, or Selectively Disable Paid Memberships Pro Emails to the Member/User or Admin" at Paid Memberships Pro here: https://www.paidmembershipspro.com/methods-to-totally-disable-reroute-or-selectively-disable-paid-memberships-pro-emails-to-the-memberuser-or-admin/